Workers comp rates for code 6504: Heating/Air Conditioning
NCCI class code 6504 covers Heating/Air Conditioning in the construction industry. The median rate across 22 states is $1.55 per $100 payroll. Rates range from $0.480 in Utah to $7.21 in California.
Also known as: HVAC contractor · Air conditioning installation
Cheapest 5 states for code 6504
- Utah $0.480
- Washington $0.805
- Kentucky $0.980
- Tennessee $1.00
- Maryland $1.07
Most expensive 5 states
- California $7.21
- New Jersey $4.55
- Hawaii $3.94
- Illinois $3.08
- New York $2.75
Code 6504 rates in all 22 states
| State | Code | Rate per $100 | vs peers | Source |
|---|---|---|---|---|
| Utah | 6504 | $0.480 | 5% | view |
| Washington monopolistic | 6504 | $0.805 | 9% | view |
| Kentucky | 6504 | $0.980 | 14% | view |
| Tennessee | 6504 | $1.00 | 18% | view |
| Maryland | 6504 | $1.07 | 23% | view |
| Virginia | 6504 | $1.07 | 27% | view |
| Arkansas | 6504 | $1.25 | 32% | view |
| Alabama | 6504 | $1.36 | 36% | view |
| Michigan | 6504 | $1.39 | 41% | view |
| Oregon | 6504 | $1.42 | 45% | view |
| Kansas | 6504 | $1.46 | 50% | view |
| Alaska | 6504 | $1.55 | 59% | view |
| Louisiana | 6504 | $1.55 | 59% | view |
| Indiana | 6504 | $1.69 | 64% | view |
| Minnesota | 6504 | $1.76 | 68% | view |
| Rhode Island | 6504 | $1.85 | 73% | view |
| Nevada | 6504 | $2.26 | 77% | view |
| New York | 6504 | $2.75 | 82% | view |
| Illinois | 6504 | $3.08 | 86% | view |
| Hawaii | 6504 | $3.94 | 91% | view |
| New Jersey | 6504 | $4.55 | 95% | view |
| California | 6504 | $7.21 | 100% | view |
Bottom quartile (cheap) Mid Top quartile (expensive)
FAQs about NCCI 6504
What occupation is NCCI class code 6504?
Class code 6504 is "Heating/Air Conditioning" (also known as HVAC contractor, Air conditioning installation), in the construction industry. The code is filed in 22 states.
What is the average workers comp rate for code 6504?
The median rate across 22 states is $1.55 per $100 of payroll, ranging from $0.480 (Utah) to $7.21 (California).
Why does code 6504 cost more in some states than others?
Workers comp rates reflect each state's loss experience for that occupation, the rating bureau's methodology (NCCI vs. independent), schedule rating credits, and the state's medical-cost inflation. Some states are monopolistic (only the state fund writes coverage) while others are open competitive markets.